SOHC Comp Cam

mikeb818 · Post by **mikeb818** » Fri Jan 08, 2010 9:33 pm

So im thinking about buying a Comp Cam for my 04 SXT. It is a 400 series. how much HP should i expect to gain. and if I install it all i really need as well is a new cam gear. correct??

This is the cam
http://www.summitracing.com/parts/CCA-107-400-8/

sneakers O'toole · Post by **sneakers O'toole** » Fri Jan 08, 2010 9:55 pm

don't need a cam gear unless you feel the need to move the power band up or down in the rpm range.

r/tguy02 · Post by **r/tguy02** » Fri Jan 08, 2010 10:37 pm

Don't forget mag valve springs or aftermarket ones. And I don't know how much hp it gives you exactly but it's a def improvement on the butt dyno. Tq is greatly improved in the midrange

sneakers O'toole · Post by **sneakers O'toole** » Fri Jan 08, 2010 11:04 pm

oh yeah, i forgot about the springs. i only have an '01 mag. cam so i didn't upgrade my springs. yeah with a comp 400 get mag. springs...good enough for the 400 and they're relatively cheap.

stdlystdmufn · Post by **stdlystdmufn** » Sat Jan 09, 2010 12:05 am

i have mag springs that you can buy when i get my new ones in a couple days just PM if youre interested

mikeb818 · Post by **mikeb818** » Sat Jan 09, 2010 3:57 am

i read on the site that its a mild cam and it could use the stock springs

Post by **occasional demons** » Sat Jan 09, 2010 7:32 am

Yep, it is designed to be used with oem springs. But if your mileage is getting up there, fresh springs won't hurt, and the Mag springs come with new retainers. You are looking at about $80 to $90 for new Mag springs. It is really a good deal. I doubt you could buy standard springs/retainers seperately for that. (Tho new retainers are prolly not truely necessary.)

The only pain is changing the springs. That part takes an air compressor, spring compressor, a compression tester hose with the check removed, small neelde nose pliers, and patience/perseverance.

farmboy · Post by **farmboy** » Sat Jan 09, 2010 7:33 am

Not recommended to use the stock springs unless you already have an R/T. Get the Magnum springs for it, (unless you want to chance going back in to replace a lot more stuff when the springs fail). I just put a comp 400 in my 02 R/T and it feels great. As previously mentioned, the tq is noticably stronger and the car seems to want to pull harder. I also installed an adjustable cam gear for future play (it's currently set at 0 degrees) and since you're in there, you might as well replace your timing belt, water pump and tensioner too.

contagious18 · Post by **contagious18** » Sat Jan 09, 2010 3:01 pm

i got a r/t cam installed and went ahead and got the r/t springs.

BlackRoseRacing · Post by **BlackRoseRacing** » Sun Jan 10, 2010 10:07 am

Do you run your car above 4500rpm often?
Granted the 400 is designed for the stock rev limits unlike the #14, if you are not going to see 4500rpm or higher you are actually going to lose bottom end power on a daily driver.
Also a cam upgrade compliments all other bolt ons, so if you have not done:
UDP,60mm,CAI,Performance Exhaust etc
I don't recomend installing the cam until you do the other mods first.

NickKo · Post by **NickKo** » Sun Jan 10, 2010 11:07 am

BlackRoseRacing wrote:Do you run your car above 4500rpm often?
Granted the 400 is designed for the stock rev limits unlike the #14, if you are not going to see 4500rpm or higher you are actually going to lose bottom end power on a daily driver.
Also a cam upgrade compliments all other bolt ons, so if you have not done:
UDP,60mm,CAI,Performance Exhaust etc
I don't recomend installing the cam until you do the other mods first.

The 400 will cause you to lose bottom end on a daily driver ??

When you say, 'daily driver', are you talking about an engine that is otherwise stock ??
Or one that has already had the other bolt-ons done ?? ( UPD, T/B, CAI, Header, etc.)

- Nick

BlackRoseRacing · Post by **BlackRoseRacing** » Sun Jan 10, 2010 11:43 am

on a motor relatively stock and with bolt ons. The cam is designed for mid-upper rpm levels. You will notice a drastic loss of TQ below 3500rpm. So if you are looking to install this on an ATX car that's daily driven and does not see over 4500rpm often it is a waste of money.

neonslg09 · Post by **neonslg09** » Sun Jan 10, 2010 12:19 pm

He has a MTX.

ZeroChad · Post by **ZeroChad** » Sun Jan 10, 2010 4:46 pm

I still have pretty good low end

Its super hard to see the torque lines.

mikeb818 · Post by **mikeb818** » Sun Jan 10, 2010 9:54 pm

i have a CAI planning on UDP and SRT rear section. so those first and then CAM and yeah i get it over 4500 a bit when i turn on my honda hunter mode

NickKo · Post by **NickKo** » Mon Jan 11, 2010 1:38 pm

ZeroChad wrote:I still have pretty good low end Its super hard to see the torque lines.

Good to know, Thanks for the 'butt dyno', man-in-the-street review.

If the torque loss is measurable / noticable only on a dyno, then it may not even be noticable on the street, anyways.

- Nick